I did a quick piece of research and found this regarding drug companies buying medical records.

"It's all about marketing," said the source. "They say it's for
research and to some degree it is. But mainly it's used for research in
how to make more money. We get information about which doctors are
prescribing what drugs, and for how much so we can see which ones we
need to go push  harder. There's a ranking list of our best
prescribing doctors. Pharmaceutical manufacturers even use those
reports to decide how much to pay their sales representatives."

http://acadiana.medicalnewsinc.com/news.php?viewStory=886

I don't go to mythical places with strange men.
-- Douglas Adams, The Long Dark Tea-Time of the Soul.